standard concentration method 标准浓度法
different standard concentration 标准品浓度
emission concentration standard [环境] 浓度排放标准
concentration-gray scale standard curve 浓度
standard sample concentration 标样浓度
standard series concentration 标准系列浓度
Where the naught refers now to the standard concentration.
作比较,零表示标准浓度。
The intensity or concentration of the occupational-disease-inductive substances does not meet the national standard of occupational health;
工作场所职业病危害因素的强度或者浓度超过国家职业卫生标准的；
The average concentration of particulates in city air during 2008, for example, was six times the ideal standard recommended by the World Health Organization.
以2008年全年的数据为例，北京市市区空气单位体积微小聚合颗粒数是世界卫生组织标准的6倍。
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